Welcome Josh....yes, you need to BH tune your hunting bow.
An arrow with even a tiny wobble [that many times you cannot see in flight and don't realize it] kills arrow performance. You HAVE TO HAVE perfect arrow flight.
Many guys will tune with a fixed BH....then use a mech head. The whole point is making sure your hunting arrow hits where you are aiming....guessing doesn't cut it.
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TUNING;
First we need to make some assumptions as if you are shooting BH tipped arrows that aren't perfectly straight- tuning is for not.
Assumptions;
1)your cams are tuned [sometimes you want one slightly ahead of the other- sometimes the exact same] 2) you are shooting a perfectly straight BH tipped arrow AND 3) your rest is set at factory spec, 4) no form flaws [ inconsistent groups is an indication of this] 5) not underspined
any of these^ above...and you won't be able to tune
When a BH tipped arrow won't group with FP's that tells you that the arrow isn't coming out of the bow perfectly straight. Many times its an underspined condition.
Once the above is accomplished;
Heres what I do; I paper test FP's for a bullet hole at 3,6,12 yards. If you are getting inconsistent results...look in the mirror.....its form related. If my BH arrow is a right tear, I move the rest opposite [I chase the FP group with my rest] more on that in a minute ITS CRITICAL TO MAKE TINY ADJUSTMENTS....ITS EASY TO OVER ADJUST. I'VE NEVER HAD TO MOVE MY REST MORE THAN 1/16" ONCE ITS PAPER TUNED TO GET BH'S TO FLY PERFECT.
So once I have a bullet hole with FP's....thats the 1/2 way point of tuning. Then when BH tuning....I chase the FP with my rest. So if my BH's are left of my FP's, I move the rest a 32nd to the right.
SOMETIMES THIS^ DOESN'T WORK!
Heres why I think there is so much inconsistent advice out these on BH tuning; Paper tuning only got you close and SOMETIMES YOU OVER SHOOT. I've had times when I move my rest to chase my FP arrows....and keep moving and moving...and its still doesn't tune. The reason for that is I over shot it when paper tuning. When I go back to my initial setting and move it the OPPOSITE of chasing my FP's- BAM, my BH's group with my FP's. Key is tiny adjustments....and if you go past that 1/16" inch or so from factory....you more than likely need to go the other way.
THATS IT IN A NUTSHELL......
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